Status & Trends by Species

Summer Chinook

© E.R. Keeley

Summer Chinook is an anadromous fish species, and has been named as a focal species by subbasin planners in 2 subbasins. Status and trends data are available for this species in 2 subbasins. Summer Chinook is Federally protected in 1 subbasin. No biological objectives have been set for this focal species in the Columbia River Basin.

Summer Chinook migrate as adults to the Columbia River above the confluence with the Snake River. They enter streams in summer, and spawn in the mainstem of larger rivers and streams in fall.

For more information:

Focal species represent the fish species that the subbasin planners have identified as focal species for the respective subbasin. The biological objectives associated with a focal species were either described in the subbasin plan or were included in state, tribal, or federal recovery/management plans. Biological objectives and current status are linked to their respective reference information; if the reference exists on-line, a link is provided to the original data.

The status and trend information represents the most current data that is available. Data were collected through interviews with biologists and reviews of reports and websites. Each chart is linked to a table of the data, and each datapoint in that table is linked to reference information. The focal species data presented have been reviewed and approved by the respective collectors.


Columbia Cascade Province

Columbia Upper Middle Subbasin
Species ESU MPG Population Biological Objective (s) Biological Status Federal Status Data / Charts
Summer Chinook Upper Columbia      Subbasin Plan Objective :
Adult Counts (Rock Island Dam)
2017: 56,265 adults 60
Not Listed Status & Trends

Mountain Snake Province

Salmon Subbasin
Species ESU MPG Population Biological Objective (s) Biological Status Federal Status Data / Charts
Summer Chinook       Draft Recovery Plan Criteria :
Bear Valley Creek - 750 natural adults348, Big Creek - 1,000 natural adults348, Chamberlain Creek - 750 natural adults348, Loon Creek - 500 natural adults348, Marsh Creek - 500 natural adults348, Secesh Creek - 750 natural adults348, South Fork Mainstem - 1,000 natural adults348, Lemhi River - 2,000 natural adults348, Salmon River Lower Mainstem - 2,000 natural adults348, Salmon River Upper Mainstem - 1,000 natural adults. No recommendations for Camas Creek, Lower Middle Fork, North Fork, Pahsimeroi River, Valley Creek, and Yankee Fork populations.348
Subbasin Plan Objective :
36,400 spawning natural adults349
NOSA Estimate
2016: South Fork Salmon River - 351 spawners 474
Pahsimeroi River - 347 spawners 474
Juvenile Outmigrants
2016: South Fork Salmon River - 102,681 juveniles 474
Pahsimoroi River - 61,447 juveniles 474
Threatened Status & Trends